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ADCMP582 Datasheet(PDF) 1 Page - Analog Devices

Part # ADCMP582
Description  Ultrafast SiGe Voltage Comparator
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADCMP582 Datasheet(HTML) 1 Page - Analog Devices

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Ultrafast SiGe
Voltage Comparator
Preliminary Technical Data
ADCMP580/ADCMP581/ADCMP582
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2003 Analog Devices, Inc. All rights reserved.
FEATURES
150 ps propagation delay
25 ps overdrive and slew rate dispersion
8 GHz equivalent input rise time bandwidth
100 ps minimum pulse width
35 ps typical output rise/fall
10 ps deterministic jitter(DJ)
200 fs random jitter (RJ)
−2 V to +3 V input range with +5 V/−5.2 V supplies
On-chip terminations at both input pinsl
Resistor-programmable hysteresis
Differential latch control
Power supply rejection > 70 dB
APPLICATIONS
Automatic test equipment (ATE)
High speed instrumentation
Pulse spectroscopy
Medical imaging and diagnostics
High speed line receivers
Threshold detection
Peak and zero-crossing detectors
High speed trigger circuitry
Clock and data signal restoration
GENERAL DESCRIPTION
The ADCMP580/ADCMP581/ADCMP582 are ultrafast voltage
comparators fabricated on Analog Devices, Inc.’s proprietary
XFCB3 Silicon Germanium (SiGe) bipolar process. The
ADCMP580 features CML output drivers; the ADCMP581
features reduced swing ECL (negative ECL) output drivers; and
the ADCMP582 features reduced-swing PECL (positive ECL)
output drivers.
The three comparators offer 150 ps propagation delay and 100
ps minimum pulse width for 10 Gbps operation with 200 fs
random jitter (RJ). Overdrive and slew rate dispersion is
typically less than 25 ps.
FUNCTIONAL BLOCK DIAGRAM
VP NONINVERTING
INPUT
VTP TERMINATION
VTN TERMINATION
VN INVERTING
INPUT
LE INPUT
HYS
Q OUTPUT
Q OUTPUT
LE INPUT
ADCMP580/
ADCMP581/
ADCMP582
CML/ECL/
PECL
Figure 1.
The ±5 V power supplies enable a wide −2 V to +3 V input
range with logic levels referenced to the CML/NECL/PECL
outputs. The three inputs have 50 Ω on-chip termination
resistors with the optional capability to be left open (on an
individual pin basis) for applications requiring high impedance
input.
The CML output stage is designed to directly drive 400 mV into
50 Ω transmission lines terminated to ground. The NECL
output stages are designed to directly drive 400 mV into 50 Ω
terminated to −2 V. The PECL output stages are designed to
directly drive 400 mV into 50 Ω terminated to VCCO − 2 V. High
speed latch and programmable hysteresis are also provided. The
differential latch input controls are also 50 Ω terminated to an
independent VTT pin to interface to either CML or ECL or to
PECL logic.
The ADCMP580/ADCMP581/ADCMP582 are available in a
16-lead LFCSP package.
© 2004


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